if you can reproduce in firefox submit an ABP issue report and post the link here.

I don't know what you're asking me to do here. I use uBlock Origin with Firefox so why would I submit an ABP issue report? And with ABP on Chrome I don't see a "Report issue on this webpage" feature or anything like the instructions you linked me to.

Will try to perform what you've asked if I see the Adblock screen again though I don't foresee going back to the site anytime soon since the video seems to freeze often, at least with my version of Chrome.

but then when i reopen the page and start to scroll, the scrollbar disappears and i'm stuck in the
position that i scrolled to. Mouse scrool and keyboard scrolls also dont work.
use ABP (but it's the same on ublock, adblock, adguard blocker, adblocker ultimate, ...) , firefox, have EasyList, EasyPrivacy, Fanboy's Social Blocking List turned on.